/**
 * FileName: AESUtil
 * Author:   Leopold
 * Date:     2018/12/22 11:32
 * Description:
 * History:
 */
package com.ibeetl.admin.core.util;

import org.apache.commons.codec.binary.Base64;

import javax.crypto.Cipher;
import javax.crypto.KeyGenerator;
import javax.crypto.SecretKey;
import javax.crypto.spec.SecretKeySpec;
import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;
import java.util.logging.Level;
import java.util.logging.Logger;

public class AESMacUtil {

//    加密密码
    public static final String PWD = "talent_subsidies";

    private static final String KEY_ALGORITHM = "AES";
    private static final String DEFAULT_CIPHER_ALGORITHM = "AES/ECB/PKCS5Padding";//默认的加密算法

    /**
     * AES 加密操作
     *
     * @param content 待加密内容
     * @param password 加密密码
     * @return 返回Base64转码后的加密数据
     */
    public static String encrypt(String content, String password) {
        try {
            Cipher cipher = Cipher.getInstance(DEFAULT_CIPHER_ALGORITHM);// 创建密码器

            byte[] byteContent = content.getBytes("utf-8");

            cipher.init(Cipher.ENCRYPT_MODE, getSecretKey(password));// 初始化为加密模式的密码器

            byte[] result = cipher.doFinal(byteContent);// 加密

            return Base64.encodeBase64String(result);//通过Base64转码返回
        } catch (Exception ex) {
            Logger.getLogger(AESMacUtil.class.getName()).log(Level.SEVERE, null, ex);
        }

        return null;
    }

    /**
     * AES 解密操作
     *
     * @param content
     * @param password
     * @return
     */
    public static String decrypt(String content, String password) {

        try {
            //实例化
            Cipher cipher = Cipher.getInstance(DEFAULT_CIPHER_ALGORITHM);

            //使用密钥初始化，设置为解密模式
            cipher.init(Cipher.DECRYPT_MODE, getSecretKey(password));

            //执行操作
            byte[] result = cipher.doFinal(Base64.decodeBase64(content));

            return new String(result, "utf-8");
        } catch (Exception ex) {
            Logger.getLogger(AESMacUtil.class.getName()).log(Level.SEVERE, null, ex);
        }

        return null;
    }

    /**
     * 生成加密秘钥
     *
     * @return
     */
    private static SecretKeySpec getSecretKey(final String password) {
        //返回生成指定算法密钥生成器的 KeyGenerator 对象
        KeyGenerator kg = null;

        try {
            kg = KeyGenerator.getInstance(KEY_ALGORITHM);

            //AES 要求密钥长度为 128
            SecureRandom secureRandom = SecureRandom.getInstance("SHA1PRNG");
            secureRandom.setSeed(password.getBytes());
            kg.init(128, secureRandom);

            //生成一个密钥
            SecretKey secretKey = kg.generateKey();

            return new SecretKeySpec(secretKey.getEncoded(), KEY_ALGORITHM);// 转换为AES专用密钥
        } catch (NoSuchAlgorithmException ex) {
            Logger.getLogger(AESMacUtil.class.getName()).log(Level.SEVERE, null, ex);
        }

        return null;
    }
//1lfhdKA0MbpF+si0LrJOfQ==
    public static void main(String[] args) {
        final String PWD = "mc-talentLicense";

        String s = "{\n" +
                "  \"id\":\"327\",\n" +
                "\"name\":\"谭炽强\",\n" +
                "\"sex\":\"1\",\n" +
                "\"birthday\":\"1985-09-05 00:00:00\",\n" +
                "\"nation\":\"1\",\n" +
                "\"politicalOutlook\":\"13\",\n" +
                "\"maritalStatus\":\"2\",\n" +
                "\"nativePlace\":\"中国\",\n" +
                "\"mailBox\":\"tanchiqiang@medeli.com\",\n" +
                "\"contactNumber\":\"13680322612\",\n" +
                "\"PhoneNumber\":\"3901876\",\n" +
                "\"idType\":\"1\",\n" +
                "\"identificationNumber\":\"440784198509090613\",\n" +
                "\"accountOpeningBank\":\"建行珠海金湾支行\",\n" +
                "\"bankCardNumber\":\"6227003090980319884\",\n" +
                "\"graduateSchool\":\"韶关学院\",\n" +
                "\"major\":\"电子信息科学与技术\",\n" +
                "\"education\":\"3\",\n" +
                "\"academicDegree\":\"3\",\n" +
                "\"currentWorkingEnterprise\":\"得理乐器（珠海）有限公司\",\n" +
                "\"position\":\"电子工程师\",\n" +
                "\"delFlag\":\"0\",\n" +
                "\"userId\":\"54457\",\n" +
                "\"majorAchievements\":\"\",\n" +
                "\"salary\":\"165330.49\",\n" +
                "\"salariesTax\":\"14393.78\",\n" +
                "\"startDate\":\"2013-07-03\",\n" +
                "\"endDate\":\"2016-04-21\",\n" +
                "\"taxMonths\":\"12\",\n" +
                "\"Idfile\":\"\",\n" +
                "\"payList\":\"\",\n" +
                "\"taxProof\":\"\",\n" +
                "\"bankCardNumberProve\":\"\",\n" +
                "\"laborContract\":\"\",\n" +
                "\"otherMaterials\":\"\",\n" +
                "\"companyId\":\"53831\",\n" +
                "\"year\":\"2020\",\n" +
                "\"creationDate\":\"2016-07-13 16:52:41\",\n" +
                "\"businessState\":\"业务生效\",\n" +
                "\"businessStateCode\":\"4\",\n" +
                "\"declareTime\":\"\",\n" +
                "\"handlingSuggestion\":\"\",\n" +
                "\"dateReporting\":\"2016-09-21 16:52:41\",\n" +
                "\"processResult\":\"\",\n" +
                "\"processUserName\":\"\",\n" +
                "\"processUserId\":\"\",\n" +
                "\"reviewUserId\":\"\",\n" +
                "\"reviewUserName\":\"\",\n" +
                "\"specialInstructions\":\"\",\n" +
                "\"companyDeclareTime\":\"2016-07-43 16:52:41\",\n" +
                "\"taskOid\":\"43\",\n" +
                "\"socialCreditCode\":\"289584930859843905809349xxx\",\n" +
                "\"externalTaskId\":\"12\",\n" +
                "\"invokeStatus\":\"\"\n" +
                "}";

        String s1 = AESMacUtil.encrypt(s, PWD);
        System.out.println(s1);

        System.out.println(AESMacUtil.decrypt(s1, PWD));

        String s2 = "{\"id\":\"GRFC20200400203\", 'result':0}";
        String encryptS2 = AESMacUtil.encrypt(s2, PWD);
        System.out.println(encryptS2);
        System.out.println(AESMacUtil.decrypt("R8d2TU68ctv7hxleowwmv13J8JkhJUJgWW+k+uMn/kKBCUVpZjUUqkWcTe/MSlRBqRSJrieqMh8W3UwLxGO+RBicZgBy28tN+GIxROR26c5e63ZWlqfeyUccKyTrWWaeW2NbwGjYoQ/9+QlAf7J8uRte9xFhD3GzDlVvTvBu/4Y=", PWD));

    }

}
